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D3 Electrics and Water...solutions?
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bkehoe
 


Member Since: 24 Feb 2006
Location: Wexford
Posts: 1481

Ireland 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

GTR says it is inside in the back, and I think you can see it in this picture of christylers D3, just at the extreme right

 IE - 05 D3 TDV6 HSE - Zambezi Silver
SA - 07 VW Golf TDI - White - Sold! 
 
Post #1981342nd Sep 2007 9:01 am
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caverD3
 


Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

If it is there how did that get water in it? Confused
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #1981532nd Sep 2007 11:15 am
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sideview
 


Member Since: 02 Dec 2006
Location: in the valley
Posts: 1663

United States 2005 LR3 4.0 V6 Petrol SE Auto Java BlackLR3

Condensation?
 I'm not so good at giving advice...may I offer you a sarcastic comment instead?

Haiti Earthquake Relief: Donate Your Frequent Flier Miles 
 
Post #1981902nd Sep 2007 3:44 pm
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caverD3
 


Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Had a good look at the transmission module.

It is behind the battery:

Click image to enlarge


Looks like it is protected by sealed box, It has a cover with aseal:

Click image to enlarge


However the back of the box is not sealed to the firewall. This would explain the problems if you are in the water for too long.

This is what you find inside:

Click image to enlarge



There are two modules one in front of the other, anyone know what they both are?

The connectors to the top are very exposed, so I coated all the connectors with plasticoat and put back together.
We'll see if it helps next time I get wet.

This unit really should be inside the cabin. Crying or Very sad
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #1995306th Sep 2007 12:33 am
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stapldm
 


Member Since: 11 Sep 2006
Location: Swine Town
Posts: 2330

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

CaverD3, Is there some form of sealant between the wires enering these two rubber gators and the gators themselves? It might look wasterproof, but if there's no filler inside those gators the water could just pour down in between the wires and into the box...
 Dr. Ian Malcolm:
"Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."
Transgenic tomato anyone? 
 
Post #1996996th Sep 2007 1:17 pm
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caverD3
 


Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

The gators seem to be sealed but if you llok at the top photo the box just sits on the firewall and is has no seal. This is where water will get in. If a jet wash hits just above the box it will force it'self in, hense what the dealer told me.
To seal it would require the box to be unbolted from the firewall and sealed.
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #1999917th Sep 2007 12:17 am
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SKP
 


Member Since: 07 Feb 2007
Location: Melbourne
Posts: 219

Australia 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Methinks they should be sealed the way the telcos seal the phone connectors in the pit at the front of each property here in Oz, in a big lump of (I think) silicone lube. No doubt I will be smartly corrected on this
  
Post #2000087th Sep 2007 3:52 am
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caverD3
 


Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Australia 2012 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Sounds a good idea. Very Happy
any telcos on here?
 â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games”
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System. 
 
Post #2000137th Sep 2007 5:07 am
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TDV6
 


Member Since: 23 Apr 2006
Location: Queensland or there abouts
Posts: 96

Australia 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3

I would only seal the cables with a flexible compound, otherwise the copper wires inside the cables will fatigue and break where the solid water barrier ends. Think of the vibrations caused by corregations.

I think it would also be a good idea to put some packets of desiccant inside with the module to soak up any moisture trapped in the box when you do finally seal it up. The desiccant can be got at any camera shop. Most desiccant changes colour after absorbing moisture, just leave out in the sun to dry it out and reuse it.

I am not sure about that wont corrode terminals if used as a sealant, plummers silicon does I think. I was talking to remote control model boat builders and am sure they had problems using it, but cant remember their solution.

HTH,

Ryall
  
Post #34249310th Sep 2008 11:44 pm
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wiggs
 


Member Since: 03 Sep 2006
Location: Manchester
Posts: 14372

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Fuji WhiteDiscovery 4

caverD3 wrote:

There are two modules one in front of the other, anyone know what they both are?


The one in front is 4 wheel drive control module

The one behind is the engine control module (ECM)
 G4 Gone ...but not forgotten  
Post #34249811th Sep 2008 12:13 am
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Getafix
 


Member Since: 13 Sep 2007
Location: Melbourne
Posts: 229

Australia 2008 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

Quote:
I've waded fairly deep in very brown water and my engine bay is more or less clean - how deep have you been wading and how fast / slow have you been driving ?


Off Topic (kinda)

When I have gone for a swim, I get crap all over the engine, and use the high pressure cleaner to clean up. After reading this post, I am now just a touch concerned Confused
 <*(((<<  
Post #34258311th Sep 2008 10:29 am
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AndrewW
 


Member Since: 06 Aug 2007
Location: Saddleworth
Posts: 2302

United Kingdom 2016 Discovery 4 3.0 SDV6 Graphite LE Auto Orkney GreyDiscovery 4

adara wrote:
Wouldn't the amazing WD-40 help?


There IS a series of products LPS-1, LPS-2 and LPS-3. 1 is a WD40-like thin spray, 2 is like light machine oil and 3 is a marine-quality adhesive grease - all in spray cans.

I first came across LPS-1 at an exhibition in 1982. A black and Decker power drill was sprayed, just externally but into all the nooks and crannies, with LPS-1 and switched on. It was then attached to an oscillating cable which dunked it into a glass tank of water, repeatedly at about twice a minute. The drill ran perfectly for two days doing this.

Being a Mountain Rescue exhibition, there were doubters. "Bet you wouldn't hold it whilst it was doing that" came first. "OK" said the salesman, rolled up his sleeve, grabbed the drill and plunged it in, repeatedly pulling the trigger. He lived. "What about salt water" came next. So salt was added. No problem. Salesman declined to hold it in salt water - sensible chap - but it proved something.

They use it in aircraft

http://www.marvgolden.com/aircraft-supply/lps1.htm

and it is available in the UK

http://www.cromwell.co.uk/LPS7271150M

http://www.bearingboys.co.uk/LPS_3_HEAVY_D...ml-10443-p

It is not oil-based.

The LPS3 is really gooey and unpleasant but is supposed to repel even immersion pressures on bearings e.g. outboard propellers - never tried it...

Just a thought...

A
 2006 D3 finally swapped for a 2016 D4 Graphite in Graphite grey. No mods  
Post #36121717th Oct 2008 11:01 am
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malky
 


Member Since: 27 Dec 2007
Location: Sydney
Posts: 59

Australia 2011 Discovery 4 TDV6 SE Auto BournvilleDiscovery 4

To add my experience ->

did a "U"ie to park
pulled up and stopped on level road, sunny day

when suddenly -
Error messages on screen, big "F" in box where gear is dispalyed , EPB error, yellow Brake symbol on display,
rotating error messages, gear fail, brake fail, ding,ding,ding etc

"limped home" mode with errors displayed

one would expect error log

Nope no log !

If cable connector to ECU [ as described above] is dirty or shaken loose,
this is what happens

it doesn't need to be wet !

top marks to my dealer
 +======
|[___][__\___
|...-........-.......| '0|
+--(O)-------(O)--+

TDI 300 and D3 MY06 SE and Shiraz D4 MY11 with Faerie Lites 
 
Post #41969611th Feb 2009 8:17 am
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London Lad
 


Member Since: 27 May 2008
Location: Suffolk
Posts: 505

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Rather than trying to coat connectors I would use a grease IN the connector.
 .
.
.
.
You should never argue with idiots because they will just drag you down to their level....then beat you with experience ! 
 
Post #41974711th Feb 2009 9:46 am
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Daedalus
 


Member Since: 21 Sep 2014
Location: London
Posts: 16

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3
duck oil

We do a bit of cross country, including fording a river, in the Lake District a few times a year (the D3 is a revelation after years of Defenders and Series LRs - effortless almost to the point of being dull).

Periodically my D3 was throwing up codes - most are listed above in the thread - so I went ahead and replaced the transmission case ECU, thinking that the river has probably shorted the ECU. Not a difficult job and took all of 15 mins.

Took me a moment to recover my composure when I switched back on to find the vehicle was now in limp mode - and a moment more of urgent surfing through the Disco3 threads on my phone - before I realised that the new ECU needs to be programmed once it's installed. Limped across to my local garage who couldn't get the programming to 'stick' - kept erasing as soon as the flash was completed. Tried several times but found no fix.

Ended up at the very helpful Grange LR garage at Wootton Bassett, who spent an afternoon tracing the problem to corroded connectors that enter the ECU at the top (the troublesome connectors that are causing the problems in this thread). They only billed me for 30 minutes work. All is now good but I am very keen to find ways to seal the unit. Has anyone of you wise people come up with a definitive solution - and what do you think about using a coat of Swarfega's Duck Oil?

Thanks
  
Post #161266419th Feb 2016 3:40 pm
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